Definition of Tenacious: Tenacious (adjective): Holding fast; characterized by keeping a firm hold; persistent, stubborn, or determined in achieving a goal. Synonyms: persistent, determined, steadfast, resolute Antonyms: weak, yielding, irresolute, surrendering Memory Tip: Think of “tenacious” like a bulldog holding onto a toy – once it grabs on, it won’t let go easily, just like…